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PDT Partners’s Ironwood Pharmaceuticals IRWD Stock Holding History

PDT Partners’s Portfolio IRWD Stock Details IRWD Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q1 		– Sell
-223,938
Closed -$992K – 805
2024
Q4 		$992K Buy
223,938
+196,638
+720% +$798K 0.09% 340
2024
Q3 		$112K Buy
+27,300
New +$147K 0.01% 692
2022
Q1 		– Sell
-25,675
Closed -$299K – 1015
2021
Q4 		$299K Buy
+25,675
New +$315K 0.02% 668
2020
Q4 		– Sell
-185,517
Closed -$1.67M – 769
2020
Q3 		$1.67M Sell
185,517
-51,983
-22% -$517K 0.11% 234
2020
Q2 		$2.45M Sell
237,500
-19,304
-8% -$198K 0.17% 191
2020
Q1 		$2.59M Sell
256,804
-35,196
-12% -$414K 0.21% 141
2019
Q4 		$3.89M Buy
292,000
+32,795
+13% +$362K 0.24% 124
2019
Q3 		$2.23M Buy
259,205
+99,605
+62% +$968K 0.13% 187
2019
Q2 		$1.75M Sell
159,600
-30,962
-16% -$347K 0.1% 205
2019
Q1 		$2.16M Buy
+190,562
New +$2.13M 0.12% 189
2015
Q4 		– Sell
-28,516
Closed -$249K – 671
2015
Q3 		$249K Sell
28,516
-133,532
-82% -$1.25M 0.01% 1099
2015
Q2 		$1.64M Buy
162,048
+59,961
+59% +$697K 0.04% 509
2015
Q1 		$1.37M Buy
102,087
+8,239
+9% +$108K 0.03% 632
2014
Q4 		$1.2M Buy
93,848
+38,628
+70% +$442K 0.11% 195
2014
Q3 		$599K Buy
+55,220
New +$632K 0.02% 883
2013
Q4 		– Sell
-40,942
Closed -$406K – 888
2013
Q3 		$406K Sell
40,942
-25,967
-39% -$255K 0.01% 1134
2013
Q2 		$558K Buy
+66,909
New +$811K 0.01% 1022

Other funds holding IRWD

SCM
Sarissa Capital Management Greenwich, Connecticut $158M AUM 103.7% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
AC
Armistice Capital New York $5.62B AUM 36.06% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
B
Braidwell Stamford, Connecticut $3B AUM 46.72% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
KCM
Kynam Capital Management Princeton, New Jersey $1.62B AUM 138.67% 1-Year Est. Return
LSV Asset Management
LSV Asset Management Chicago, Illinois $46.4B AUM 27.74% 1-Year Est. Return
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return

PDT Partners's IRWD Position: Q1 2025 in Review

PDT Partners sold out of Ironwood Pharmaceuticals (IRWD) in Q1 2025, closing a stake of 223,938 shares — an estimated $992K sold.

PDT Partners first reported a position in IRWD in Q2 2013 and held it in 17 quarters. The position peaked at $3.89M in Q4 2019. 200 funds tracked by Wall St. Rank hold IRWD as of Q1 2025.

  • PDT Partners reported no remaining Ironwood Pharmaceuticals position as of Q1 2025 after selling out during the quarter.
  • PDT Partners sold 223,938 Ironwood Pharmaceuticals shares in Q1 2025, an estimated $992K.
  • PDT Partners first reported a position in Ironwood Pharmaceuticals in Q2 2013 and held it in 17 quarters.
  • PDT Partners's Ironwood Pharmaceuticals position peaked at $3.89M in Q4 2019.
  • 200 funds tracked by Wall St. Rank held Ironwood Pharmaceuticals as of Q1 2025.

Based on PDT Partners's 13F filing for Q1 2025, filed 15 May 2025.